JP2000312831A - Crusher for structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a crusher for structures, capable of regulating the opening degree of a movable jaw according to the size of a object to be crushed and easily crushing it surely and efficiently. SOLUTION: In a crusher for structures, a fixed jaw 2 is attached to the forward end of a holder 1, a movable jaw 5 is engagably pivoted to the fixed jaw 2 through a pivot 6, and the movable jaw 5 is connected to a cylinder, which is pivoted on the holder 1, through a connection member 10. The connection member 10 is mounted to the movable jaw 5 through a mounting angle adjustment means 13 to freely adjust a mounting angle to the crushing surface of the movable jaw 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher for a structure, and more particularly to a crusher for a structure used for crushing a structure such as a reinforced concrete by being attached to a working machine such as a power shovel. It relates to a crusher.

[0002]

2. Description of the Related Art Conventionally, as a crushing machine for a structure of this type, a pair of movable jaws, each having a substantially rectangular shape, are pivotally attached to a required holder via a pivot so as to be able to engage with each other.
One in which a cylinder is connected to the base end of the movable jaw via a connecting member (JP-A-6-19328, JP-A-8-19328)
Alternatively, a fixed jaw and a movable jaw are pivotally attached to a required holder via a pivot so as to be able to fit together, and a cylinder is attached to a base end of the movable jaw via a connecting member. Connected ones are known, and are generally used by being rotatably attached to the tip of an arm of a power shovel or the like for use. When a required structure such as a reinforced concrete is to be crushed and dismantled, the movable jaw is expanded by a cylinder through a connecting member, and the movable jaw is fixed between the movable jaws or the fixed jaw. Each part of the structure is sandwiched between the two, and is crushed by a pressing force of a cylinder to be sequentially dismantled while being crushed.

[0003]

In the prior art constructed as described above, the connecting member connecting the cylinders is pivotally mounted on the movable jaw so that the movable jaw is restricted by the connecting member. The opening operation can be freely performed at a required angle without being performed. Therefore, apart from crushing a large amount of large crushed material, apart from crushing a large amount of small crushed material, it is necessary to perform crushing work while controlling the degree of expansion of the movable jaw to small by visual measurement etc. Not only is it extremely inconvenient to use, but also tends to waste power costs,
Efficient crushing work was difficult. Also,
As described above, since the movable jaw is crushed with a small opening degree, the initial crushing force is necessarily weak, and a sufficient crushing effect is hardly expected.

[0004] The present invention solves the conventional problems at once,
The purpose of which is to provide a crushing machine for a structure in which the degree of expansion of the movable jaw is regulated according to the size of the crushed material, and the crushable material can be crushed very easily and reliably and efficiently. It is.

[0005]

That is, according to the present invention, a fixed jaw 2 is attached to a front end of a holder 1 and a movable jaw 5 is pivotally attached to the fixed jaw 2 via a pivot 6 so as to be free to fit. The movable jaw 5 is a structural crusher in which a cylinder 18 pivotally attached to a holder-1 is connected via a connecting member 10, wherein the connecting member 10 is provided with respect to a crushing surface of the movable jaw 5. A crusher for a structure characterized by being attached to a movable jaw 5 via an attachment angle adjusting means 13 so as to freely adjust an attachment angle.

[0006]

Embodiments of the present invention will be described below with reference to an embodiment shown in the drawings. 1 to 6 show an embodiment of the present invention. In the drawings, reference numeral 1 denotes a holder which can be attached to the tip of a multi-joint arm 22 of a power shovel 21 described later, and 2 denotes the holder. -1 is a fixed jaw attached to the tip of the fixed jaw 3 is a notch escape portion formed in a notch shape at the tip of the fixed jaw 2, and 4 is a pair of bearings provided upright on both sides of the fixed jaw 2. It is. Reference numeral 5 denotes a movable jaw pivotally connected to the fixed jaw 2 via the bearing 4 with a pivot 6 so that the movable jaw can be engaged with the fixed jaw. Reference numeral 7 denotes a protruding portion of the movable jaw 5 corresponding to the escape portion 3 of the fixed jaw 2. The required number of crushing claws 8 provided are a pair of bearing members on both sides erected at the upper end of one side of the movable jaw 5, 9
Is a stopper piece formed between the bearing members 8. 1
Reference numeral 0 denotes a cylinder connecting member rotatably connected to the bearing member 8 via a pivot 11. Reference numeral 12 denotes a notch-shaped hook formed at the tip of the connecting member 10 to correspond to the stopper piece 9. The stop portions 13 are mounting angle adjusting means for mounting and fixing the connecting member 10 at a required angle to the crushing surface of the movable jaw 5. The mounting angle adjusting means 13 is directed from the top of the bearing member 8 in the axial direction. Required number of mounting holes 14a and 14b formed at predetermined intervals by
b, a mounting arm 15 having an insertion hole 16 provided laterally at the upper end of one side of the connecting member 10 and a hook bar of a required length which can be inserted into the mounting holes 14a and 14b through the insertion hole 16. 17. Reference numeral 18 denotes a cylinder connected to the free end of the connecting member 10 via a pivot pin 19, and the base end of the cylinder 18 is pivotally attached to the holder 1 via the pivot pin 20. In addition, 21 is a power shovel, and 22 is a multi-joint arm constituting the power shovel 21.

The embodiment constructed as described above, as shown in FIGS. 1 and 2, has a multi-joint arm of a power shovel 21.
It is used by being rotatably attached to the tip of the program 22. And, for example, when crushing a large amount of small crushed material,
First, the connecting member 10 is rotated so that the mounting arm 15 is aligned with the required mounting hole 14a, and the hook bar 17 is inserted through the insertion hole 16 into the mounting hole 14a. A predetermined angle is set so as to be parallel to the crushing surface of the movable jaw 5 (see FIG. 3). Thereafter, the movable jaw 5 is expanded and opened by the cylinder 18 via the connecting member 10, and the object to be crushed is sandwiched between the movable jaw 5 and the fixed jaw 2 (see FIG. 4A). At this time, since the connecting member 10 exhibits a parallel state to the crushing surface of the movable jaw 5, the expansion degree of the movable jaw 5 is first restricted, and the expansion degree suitable for the small crushed object is always automatically adjusted. To present. When the clamping of the object to be crushed is completed, the movable jaw 5 is closed by the cylinder 18 through the connecting member 10, and the object to be crushed is crushed by fitting the movable jaw 5 to the fixed jaw 2 (see FIG. 4B). At this time, as described above, since the connecting member 10 is mounted parallel to the crushing surface of the movable jaw 5 by the mounting angle adjusting means 13, the initial crushing force accompanying the pressing force of the cylinder 18 is inevitably increased. In addition, the object to be crushed can always be crushed reliably.

Conversely, in order to crush a large amount of massive crushed material, as shown in FIG. 5, the connecting member 10 is rotated about the pivot 11 so that the engaging portion 12 is attached to the stopper piece 9. After being hooked, it is inserted into the other mounting hole 14b via the hook bar 17, and the connecting member 10 is set so as to form an acute angle with the crushing surface of the movable jaw 5. Thereafter, the movable jaw 5 is expanded by the cylinder 18 via the connecting member 10, and the object to be crushed is sandwiched between the movable jaw 5 and the fixed jaw 2 (see FIG. 6A). At this time, the connecting member 10 is movable jaw 5
Since it exhibits an acute angle with respect to the crushing surface of the crushed material, the spread degree suitable for a large-sized crushed material is always automatically exhibited.
When the crushing of the crushed object is completed, the cylinder 18
Then, the movable jaw 5 is closed via the connecting member 10 so that the object to be crushed is crushed by fitting the movable jaw 5 to the fixed jaw 2 (see FIG. 6B). Similarly, the mounting angle of the connecting member 10 with respect to the crushing surface of the movable jaw 5 is appropriately adjusted by the mounting angle adjusting means 13 in accordance with the size of the object to be crushed, and the required object to be crushed is used conveniently and reliably efficiently. Let it crush.

In the above embodiment, the mounting angle adjusting means 13 is provided with mounting holes 14a and 14a formed in the bearing member 8.
14b, a mounting arm 15 with an insertion hole 16 and a hook bar 17, but the present invention is not limited to this, and a known mounting angle adjusting mechanism similar to this may be adopted. Good thing. Although two mounting holes 14a and 14b are formed, the number may be increased as necessary.

[0010]

Since the present invention is constructed as described above, the cylinder connecting member 10 can be freely mounted and fixed at a required angle with respect to the crushing surface of the movable jaw 5 by the mounting angle adjusting means 13. The movable jaw 5 is appropriately regulated in accordance with the size of the object to be crushed, and the chin can be crushed very easily and efficiently. In particular, when crushing small crushed objects, the crushing force in the initial stage of crushing can be increased by attaching and fixing the connecting member 10 substantially parallel to the crushing surface of the movable jaw 5. The crushing force can be greatly increased as compared with the conventional example.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a side view showing a state in which the embodiment is used by being attached to a power shovel 21.

FIG. 3 is a partially enlarged perspective view showing a state in which the angle of the embodiment is adjusted by a mounting angle adjusting means 13 for a small crushed object.

FIG. 4 is a partially enlarged perspective view showing a state in which the angle of the embodiment is adjusted by a mounting angle adjusting means 13 for a massive crushed object.

FIG. 5 is a partially enlarged cross-sectional view showing a state in which a small lump to be crushed is crushed according to an example.

FIG. 6 is a partially enlarged cross-sectional view showing a state in which a large lump to be crushed is crushed according to an example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holder 2 Fixed jaw 5 Movable jaw 6 Axis 10 Connecting member 13 Mounting angle adjusting means 14a / 14b Mounting hole 15 Mounting arm 16 Insertion hole 17 Latch 18 Cylinder

Claims (1)

[Claims] 1. A fixed jaw 2 is attached to the tip of a holder 1, and a movable jaw 5 is pivotally attached to the fixed jaw 2 via a pivot 6 so that the movable jaw can be engaged with the fixed jaw.
1. A crusher for a structure in which a cylinder 18 pivotally connected to a connecting member 1 is connected via a connecting member 10;
Reference numeral 0 denotes a crusher for a structure, wherein the movable jaw 5 is attached to the movable jaw 5 via an attachment angle adjusting means 13 so as to freely adjust an attachment angle of the movable jaw 5 with respect to a crushing surface.